//以构造函数方式添加私有属性和方法
function Person(name, age, address) {
this.name = name;
this.age = age;
this.address = address;
}
//以原型方式添加公有属性、方法
Person.prototype = {
constructor: Person,
showName: function () {
alert(this.name this.age this.address);
}
}
//使用
var person = new Person("zhangsan", 22, "中国北京！");
person.showName();
